### Name: draw.circle
### Title: Draw a circle.
### Aliases: draw.circle
### Keywords: misc

### ** Examples

 plot(1:5,seq(1,10,length=5),type="n",xlab="",ylab="",main="Test draw.circle")
 draw.circle(2,2,0.5,border="purple",lty=1,lwd=1)
 draw.circle(2.5,8,0.6,border="red",lty=3,lwd=3)
 draw.circle(4,3,0.7,border="green",lty=1,lwd=1)
 draw.circle(3.5,7,0.8,border="blue",lty=2,lwd=2)



